Trekking permit is only required to trek in the restricted areas such as Dolpa, Kanchanjunga. Permit can be obtained easily from the Tourism Department, located at Thamel, Kathmandu. Application can be submitted after your arrive in Nepal. The permit is not required to trek in areas such as Everest, and Annapurna. Following restricted areas require trekking permit, and they are open for trekking in a group not individually. So permit for individual trekking in these areas will be denied, also you are only allowed to trek in the areas you are permitted. Obtain multiple trekking permits should you wish to trek in multiple places. Please note: To visit national parks located in the trekking areas, you will be required to pay a separate fee which is not more than Rs 2,000 (payable in Nepalese Rupees), at the national park.
Annapurna, Everest, and Langtang : No Permit Required
Mustang and Dolpo : US$ 700 for the first 10 days and $70 per day thereafter
Manaslu : US$90 per week
Humla : US$ 90 per week. $15 per day thereafter